B5 Chang-san Air Base bunker
- Door
- Bunker armory door marked Requires Air Base Armory Access Card.
- Video route
- About 6 minutes: walk along the perimeter wall into the base, collect the code notes in the admin building, drop into the bunker and follow the vehicle tunnel to the keypad door. The six-digit code in that run may change between matches, so piece it together yourself. Player report, not checked by the guides.
- Inside
- The bunker armory, where the Air Base DRC Weapons Locker also stands.
- Get the key
- Mission reward Upgrade the Air Base Access Card (Multi Use) at the terminal in the Admin Complex No. 2 server room during Operation Iron Citadel.